Adjustable Aperture Diaphragm 4-60mm Microscope Adapter Aperture Adjustable Lens Diaphragm Optical Diaphragm Lenses Accessories for Laboratory Microscope(SK60)

About this item 4‑60mm Adjustable: The inner hole diameter is 4‑60mm adjustable. The outer diameter is 82mm. And the small holes with different diameters are provided in the optical system to meet different light requirements Aluminum Alloy Material: The aperture diaphragm is made of premium aluminum alloy, which has the characteristics of performance and firmness, and can be used for a long time. Simple This is a manually adjustable aperture diaphragm. The diameter of the metal aperture diaphragm can be changed through the handle. Compact Design: The mechanical aperture diaphragm adopts a compact design, is easy to install and does not take up too much space, which can become a more practical tool. Applicability: This adjustable aperture diaphragm is suitable for cameras, microscopes, condensers and other machines, which can help them work better.